Shuttle for carpet-looms



(No Model.) W. P. KIRKPATRICK.

SHUTTLE. FOR CARPET LOOMS.

Patented Sept. 4 1894.

Mia/177 m humus mun ca. moraumoa Irma-.10. 'u c UNITED STATES PATENTOFFICE.

WILLIAM I. KIRKPATRICK, OF ARROWSMITH, ILLINOIS.

SHUTTLE FOR CARPET-LOOMS.

SPECIFICATION forming part of Letters Patent No. 525,660, dated.September 4, 1894.

Application filed November 15, 1893. Serial No. 491, 29- (N0 model) Toall whom it may concern.-

Be it known that 1, WILLIAM P. KIRKPAT- RICK, a citizen of the UnitedStates, residing at Arrowsmith, in the county of McLean and State ofIllinois, have invented certain new and useful Improvements in Shuttlesfor Carpet-Looms; and I do hereby declare the follow ing to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

My invention relates to improvements in shuttles for carpet looms,particularly of that class which is designed for weaving rag carpet; andone object of the invention is to provide a shuttle in which the fillingwill be maintained under a constant even tension and will be in sight atall times and in such a position that it can be easily removed and.

replaced when desired.

Another object of the invention is to provide a shuttle in whichfillings of difierent color or material can be supported at the sametime and it will not be necessary to change the shuttle, or fillingtherein, in weaving striped or block carpet.

With these ends in view my invention consists in the combination with ashuttle having a filling receiving chamber which is open at its rearside and has a slot in its front wall, of a holder provided with a clampto hold itself on one side of the body of the shuttle and with a pin orsupport to maintain a roll of filling in proper position within thechamber therein.

My invention further consists in the pecuplan view, with a portion ofthe top broken away, of a modified construction.

Like letters of reference denote corresponding parts in the severalfigures of the drawings, referring to which- A designates the body ofmyimproved shuttle and said body, which may be of any desired size andmaterial, is made in the ordinary form and is provided with a centralfilling receiving chamber which is open at its rear-side and in thefront wall of which is formed a longitudinal slot, 0.

The opening in the front wall ofthe filling receiving chamber of theshuttle may be of the same size as the opening at the rear end thereofand in such casethe opening is partially closed by a plate, 0.

Within 'the chamber in the shuttle is arranged a roll of filling, B, andas the filling is unwound from said roll it is drawn through the slot,0, in' the front wall of the shuttle. The roll, B, is of such thicknessas to bear against the upper and lower walls of the filling receivingchamber in the shuttle and is maintained in position in such chamber bya detachable holder, D, which consists of two arms, adapted to extend onopposite sides of one of the walls of the shuttle, and a pin carried byone of said arms and adapted to enter the roll of filling and form anaxis about which said roll can turn.

As shown in Fig. 3 of the drawings the holder, D, is preferably formedfrom a single piece of suitable material, such asspring wire, and isfirst bent upon itself to form two parallel arms, cl, (1', which areconnected at one end and are adapted to extend on opposite sides of thetop of thechamber formed in theshuttle, and the arm, (1, is furtherbent, near its free end, to form a pin, e, which extends substantiallyat right angles to the length of said arm toward the bottom of theshuttle.

The arms, (1, d, of the holder, D, are pref- -'that the arm, d, of theholder, D, will pass beneath said plate, or said arm may be passedthrough an eye, G, as shown in Fig. 4.

The filling is drawn from the roll within the shuttle through the slot,0, in the front wall and the strain or pull exerted thereon will clampthe holder, D, more securely to the shuttle and prevent any rearwardmovement of the roll. As the lower end of the pin, e,is free the fillingwill not catch thereon as it is unwound from the roll and in case awinding should slip it will be drawn under the lower end of said pininstead of being wound around it and the movement of the roll will notbe afiected.

The roll of filling maybe prepared on a common quill or spinning wheelbetween movable heads in order that it may be of the proper width to fitwithin the shuttle and contact with the top and bottom of the fillingreceiving chamber therein. The frictional contact between the roll offilling and the walls of the shuttle insures an even tension on thefilling as it is withdrawn from the shuttle.

In weaving finer grades of carpet or if it is desired to use fillingwhich is easily raveled the filling. may be wound on a light spool orwound diagonally on a short tube, h, into which the pin, e, extends whenthe roll of filling is placed within the shuttle.

In Fig. 3 of the drawings, I have illustrated an embodiment of myshuttle especially adapted for weaving striped or block carpets, inwhich duplicate filling rolls B, B are provided with the chamber of theshuttle, said filling-rolls l3, Bibeing composed of different materialsor of different colors of the same material.

In weaving carpets with a shuttle having duplicate filling rolls, thefilling can be drawn from either of the rolls according to the materialor color it is desired to weave into the carpet, and when the roll notin use is of larger diameter, it is liable to be unrolled or rotated bythe filling as it is drawn from the roll being used crossing over andcoming in contact with the periphery of the unused roll. To overcomethis tendency of the unused roll to become unwound, I have devised aplate I which serves in some instances the purposes of a brake toprevent the two rolls from being unwound if they are of substantiallyequal diameter or the plate H may be adjusted to bear upon only one ofthe rolls if they are of unequal diameter. This plate H is situatedbetween the two filling rolls and transversely across the shuttlechamber, the length of the plate H being such as to cause its ends tolie nearly flush with the edges of the side walls of the shuttle whenthe plate is turned at right angles across the filling chamber. Theplate is pivoted or hung looselyat its middle on a support similar inconstruction to the holder D, and said support of the plate H isdetachably clamped to one of the walls of the shuttle to enable theplate and its support to be readily removed from the shuttle so that thelatter can be used in connection with a single filling-roll as in Figs.1 and 2.

WVhen the two rolls are prepared of substantially equal diameter andplaced in the shuttle, and the filling is taken from one of large rollwhich is not to be used. The small roll of filling will not rotate ofits own accord when the shuttle is in motion, but if the thread orfilling from the roll in use, crosses over and comes in contact with theunused roll, then the latter roll is liable to be turned by such fillingthread or strand; and to overcome'this objection, I provide thecentrally pivoted plate which serves to prevent the moving fillingthread or strand from the roll in use coming in contact with the unusedroll. When the shuttle with the two rolls is used for striping carpetand changes from one filling roll to the other are to be made, thefilli'n'g strand from the roll not wanted is severed or cut, and thestrand or filling is drawn from the other roll until it is againnecessary to change the filling, and when this change is made, the endof the strand from the roll now in use draws or bears against the plateso as to shift the latter to the side or toward the unused roll so thatthe plate protects the unused roll from the action of the strand drawnfrom the roll in use, the plate being automatically shifted from oneside to the other by the action of the strands or fillings against thefreely movable plate.

If one of the rolls becomes reduced in diameter through continued use,while the other roll remains large, the plate cannot be adjusted toarrest or brake the small roll, but this adjustment of the brake indirect contact with the small roll is not material, because the smallroll has no tendency to rotate on its axis except when the filling isdrawn from the other large roll in a manner tending to press or bearagainst the small roll; in this event, however, the filling from thelarge roll strikes'the pivoted plate and forces it over toward the smallroll so that the moving filling from the large roll is prevented by theplate from affecting or rotating the small roll.

My improved shuttle constructed with an open side and a holder which isclamped to the shuttle so as to expose the entire surface of the fillingroll has the practical advantage of permitting the ends of the fillingtobe readily united in case the filling breaks without removing the rollof filling from the shuttle; and furthermore it is a very easy matter tograde the filling as regards quality and color in weaving carpetsbecause the filling roll is always in sight and, if desired, the roll offilling can be quickly changed.

In the shuttle herein described the tension of the filling is notcontrolled by springs but the contact between the walls of the fillingreceiving chamber and the filling roll insures an even tension until theroll is exhausted.

the rolls, the plate acts as a brake against the of the drawings has itsupper arm, (1, divided into two parallel members which are sepa: ratedby a space, e, in which a depressed portion, e, of the plate, F, on theshuttle body, fits when the holder is placed in position in the shuttle;and the rear edge of said depressed portion takes in notches, g, formedin the upper surfaces of the members of the upper arm of the holder, D.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is

1. The combination of a shuttle provided with a filling receivingchamber whose rear side is open and in the front wall of which is formeda feed-slot, and aholder provided with a clamp to hold itself on oneside of the body of the shuttle, and with a pin or support which formsan axis for the filling roll, whereby the edges of the roll are adaptedto have frictional contact with the walls of the filling receivingchamber, as set forth.

2. The combination with a shuttle having a filling receiving chamberformed therein, of a holder consisting of two arms, adapted to extend onopposite sides of a wall of the chamber in the shuttle, and a pincarried by one of said arms and adapted to enter a roll of fillingarranged within the chamber in the shuttle, substantially as andfor thepurpose described.

3. The combination with a'shuttle having a filling receiving chamberformed therein, of

a holder formed from a single piece of metal and bent to form two arms,d, d, adaptedto extend on opposite sides of one wall of the chamber inthe shuttle, one of said arms having at its free end a pin, 6, whichextends at right angles to said arm and is adapted to form the axis of aroll of filling arranged within the chamber in the shuttle,substantially as described. V

4. The combination with ashuttle having a filling receiving chamberformed therein, of a holder having arms adapted to extend on oppositesides of one wall of the chamber in the shuttle, and a pin adapted toform the axis of roll of filling arranged within said chamber, and aplate, F, attached to the shuttle and extending across one of the armsof the holder, substantially as described.

5. The combination with a shuttle having a. filling receiving chamber,of holders adapted to be clamped to a wall of the filling-receivingchamber and sustain rolls of filling in said chamber, and a plate hungor pivoted between said holders, for the purposes describedsubstantially as set forth.

- In testimony whereof Iaffixmysignature in presence of two witnesses.

WILLIAM P. KIRKPATRICK.

